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#bullmq
2 posts
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[Messenger Load-Testing, Part 3] FCM to a Queue, Swallowed Failures to Sentry — Cleaning Up the Message-Send Handler
Part 3 of load-testing a messenger: pulling FCM push out of the message-send handler into a dedicated worker queue, and surfacing the failures that used to vanish into empty catches through Sentry. Two axes — isolating external I/O and handling error logs.
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Building a Crash-Resilient, End-to-End Meeting Recording Pipeline in the Browser
A one-hour browser recording could push the JS heap past 300 MB, and a tab crash meant losing everything. Rebuilding it as a six-stage pipeline with five-minute savepoints.
